| 摘要 |
PROBLEM TO BE SOLVED: To provide an image former which can ensure a communication quality corresponding to a change of a radio wave situation, etc. even in the case of a device having a large-sized casing. SOLUTION: The image former comprises: a directional antenna 5 having a directivity; a nondirectional antenna 6 not having a directivity; and an antenna controller for controlling a directivity direction of the directional antenna. The directivity of the directional antenna 5 is simply switched to an optimal direction by control of the antenna controller. COPYRIGHT: (C)2009,JPO&INPIT |
